<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" type="text/css" href="main.css">
    <style type="text/css">
        body {
            margin: 0;
            padding: 0;
        }
        .wrap {
            border: 20px solid blue;
        }
        .header {
            position: sticky;
            top: 20px;
            border: 20px solid red;
            margin-top: 20px;
        }
        .content {

        }
    </style>
</head>
<body>
<p>iOS 7.1 and above systems use the following link to install</p>
<p><a href="itms-services://?action=download-manifest&url=https://gitee.com/chenjiang3/lvjin-ipa/raw/master/lvjin_ios.plist">Install TU/e App For Test</a></p>
</a></p>
</body>
</html>